Citazione Stile APA (7a Edizione)

Radford, A. E., & Dickison, W. C. (1974). Vascular plant systematics. Harper & Row.

Citazione stile Chigago Style (17a edizione)

Radford, Albert E., e William C. Dickison. Vascular Plant Systematics. New York: Harper & Row, 1974.

Citatione MLA (9a ed.)

Radford, Albert E., e William C. Dickison. Vascular Plant Systematics. Harper & Row, 1974.